Question 6598
1) x(x^2 + 2x + 5 = 0)
2) x = 0
3) x^2 + 2x + 5 = 0
4) {{{x = (-2 +- sqrt( 4-4(1)(5) ))/(2) }}}
5) {{{x = (-2 +- sqrt( -16 ))/2 }}}, i hope u aware of i = sqrt(-1),so
6) {{{x= (-2 +- sqrt(16*-1))/2 }}}
7) {{{x= (-2 +- 4*sqrt(-1))/2 }}}
8) {{{x= (-2 +- 4*i)/2 }}}
9) {{{ x = -1 +- 2i}}}